New algorithm fixes prosumer cheating in two-stage energy markets
Prosumers were gaming the system. Researchers built a penalty to force truth-telling.
Deep Dive
Koumpis, Kar, Tassiulas, and Zampetakis published a paper on restoring incentive compatibility in two-stage energy markets with prosumers. They show that prosumers can profit by under-reporting day-ahead demand to exploit real-time imbalances. Their solution: a leave-one-out contrastive scoring rule-based penalty that incentivizes truthful reporting while keeping costs low for honest participants, tested on real-market data.
Key Points
- Prosumers can profit by under-reporting day-ahead demand by 10-30% to inflate real-time imbalances.
- The new penalty uses a leave-one-out contrastive scoring rule, costing <2% of revenue for honest prosumers.
- Solution proven on real market data from ISO-NE and PJM (2023-2025).
Why It Matters
Ensures fair pricing in renewable-heavy grids where prosumers (solar + storage) are booming.